TRD工法型钢水泥土搅拌墙的承载变形性状分析

发布时间：2018-01-15 01:00

  本文关键词：TRD工法型钢水泥土搅拌墙的承载变形性状分析　出处：《岩土工程学报》2015年S2期 　论文类型：期刊论文

  更多相关文章： TRD工法 等厚度型钢水泥土搅拌墙 承载变形特性 局部抗剪 三维“m”法

【摘要】：TRD(Trench cutting Re-mixing Deep wall)工法构建的等厚度水泥土搅拌墙可内插型钢作为基坑止水和挡土结构,在基坑工程实践中得到了越来越广泛的应用。作为两种刚度差异较大材料的组合结构,TRD工法型钢水泥土搅拌墙承载变形性状和作用机理较为复杂,现阶段的工程实践尚缺乏理论计算的支持。以上海典型软土地层为背景,采用三维"m"法对型钢和水泥土的相互作用和承载变形性状进行了理论分析,主要通过对其变形、弯矩分担和局部抗剪的规律研究,对工程设计中的相关问题予以明确,并结合实测工程墙体变形进行了对比。
[Abstract]:The equal thickness cement-soil mixing wall constructed by TRD(Trench cutting Re-mixing Deep wall method can be used as the retaining and retaining structure of foundation pit. It has been widely used in the practice of foundation pit engineering. As two kinds of material with great difference in stiffness, the bearing deformation behavior and the action mechanism of TRD steel cement soil mixing wall are more complicated. Based on the typical soft soil layer in Shanghai, the interaction between section steel and cement soil and the bearing deformation behavior are analyzed theoretically by using 3D "m" method. Based on the study of deformation, bending moment sharing and local shear resistance, the relevant problems in engineering design are clarified and compared with the measured deformation of engineering wall.
【作者单位】： 华东建筑设计研究院有限公司地基基础与地下工程设计研究所;
【分类号】：TU476;TU463
【正文快照】： 0引言在近年来的基坑工程实践中,等厚度型钢水泥土搅拌墙得到了越来越广的成功运用。这是H型钢和TRD(Trench cutting Re-mixing Deep wall)工法[1]构建的等厚度水泥土搅拌墙组合形成的结构。TRD工法将链锯切削刀具插入地基,注入固化剂与原位土体混合,并持续横向掘削、搅拌,水，

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